|
IMO designs and manufactures high load Triple Row Roller Slewing Rings for tunnel boring machines. A multistage sealing system can be integrated if required.
This Triple Row Slewing Ring contains brass cages and three rows of rollers in the main raceway. |
To top Slewing Rings for cutting heads present large design challenges due to the heavy loading, adverse environmental conditions and life requirements.
A Triple Row Roller Slewing Ring of 177 in OD with external toothing for a tunnel boring machine. The main raceway has two rows of rollers (approx. 3 in diameter) to carry the heavy loading created during tunnelling.
To top | The erector uses a Cross Roller Slewing Ring for lifting and positioning the concrete lining segments (Tubbing) which are used for strengthening the tunnel walls.
Specification:
Raceway diameter 4,500 mm
Outside diameter 4,700 mm
Roller diameter 40 mm
Double lip seals with primary labyrinth |
|
